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/**
* Yudit Unicode Editor Source File
*
* GNU Copyright (C) 2002 Gaspar Sinai <gsinai@yudit.org>
* GNU Copyright (C) 2001 Gaspar Sinai <gsinai@yudit.org>
* GNU Copyright (C) 2000 Gaspar Sinai <gsinai@yudit.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* dated June 1991. See file COPYYING for details.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef SBVector_h
#define SBVector_h
/**
* @author: Gaspar Sinai <gsinai@yudit.org>
* @version: 2000-04-23
*/
#include "SObject.h"
#include "SShared.h"
#include "SExcept.h"
#include <string.h>
class SBVector : public SObject
{
public:
inline SBVector(void);
inline SBVector(unsigned int size);
inline virtual ~SBVector ();
SBVector (const SBVector& v);
SBVector& operator=(const SBVector& v);
virtual SObject* clone() const
{ SBVector* n = new SBVector (*this); CHECK_NEW(n); return n;}
/**
* insert, replace, replaceAll, remove, clear require that you properly
* derefer objects.
*/
inline void insert (unsigned int index, const char* e, unsigned int len);
inline void remove (unsigned int index, unsigned int len);
void replace (unsigned int index, const char* e, unsigned int len);
void clear ();
int replace (const char* e, unsigned int len,
const char* with, unsigned int withLen, unsigned int from=0, unsigned int align = 1);
int replaceAll (const char* e, unsigned int len,
const char* with, unsigned int withLen, unsigned int from=0, unsigned int align = 1);
inline char* peek (unsigned int index) const;
int find (const char* e, unsigned int len, unsigned int from, unsigned int align=1) const;
inline unsigned int size () const;
static int debug (int level);
inline bool isNull () const;
inline bool equals (const SBVector& v) const;
inline const char* array() const;
protected:
inline unsigned int count () const;
inline void derefer ();
void refer(const SBVector& v);
inline void ensure (unsigned int more);
private:
SShared* buffer;
inline void cleanup ();
};
/**
* This is the base for all object vectors
*/
class SOVector : public SBVector
{
public:
SOVector (void);
SOVector (unsigned int size);
SOVector (const SOVector& v);
virtual ~SOVector ();
virtual SObject* clone() const;
SOVector& operator=(const SOVector& v);
void replace (unsigned int index, const SObject& v);
void insert (unsigned int index, const SObject& v);
void remove (unsigned int index);
inline void ensure (unsigned int more)
{ SBVector::ensure (more * sizeof (SObject*)); }
unsigned int size () const;
void clear ();
void refer (const SOVector& v);
const SObject* peek (unsigned int index) const;
protected:
void derefer();
private:
void replaceQuetly (unsigned int index, const SObject* r);
void cleanup();
};
//PUBLIC/INLINE
/**
* This is the vector class. I dont prefer using STL.
*/
SBVector::SBVector(void)
{
buffer = new SShared();
}
/**
* This is the vector class. I dont prefer using STL.
*/
SBVector::SBVector(unsigned int _size)
{
buffer = new SShared(_size);
}
//PUBLIC/INLINE
/**
* Return the size of the char array
*/
unsigned int
SBVector::size() const
{
return buffer->vectorSize;
}
//PUBLIC/INLINE
bool
SBVector::isNull () const
{
return buffer->arraySize==0;
}
//PUBLIC/INLINE
const char*
SBVector::array() const
{
return buffer->array;
}
//PUBLIC/INLINE
/**
* Return the element at index.
* @param index is the reference index of len blocks
*/
char*
SBVector::peek (unsigned int index) const
{
if (index > buffer->vectorSize) return 0;
return &buffer->array[index];
}
//PROTECTED/INLINE
unsigned int
SBVector::count() const
{
return buffer->count;
}
//PROFILE - made inline, moved on top of source file
/**
* The array will change. If the buffer is shared copy the buffer.
*/
void
SBVector::derefer()
{
if (buffer->count==1) return;
buffer->count--;
buffer = new SShared (*buffer);
}
//PROFILE - made inline, moved to the top of source file
/**
* clean up. usually called before delete.
* remove the buffer or its reference.
*/
void
SBVector::cleanup ()
{
if (buffer->count==1) {
delete buffer;
} else {
buffer->count--;
}
}
//PUBLIC
/**
* The destructor
*/
SBVector::~SBVector()
{
cleanup();
}
/**
* Insert char's with len length at index.
* @param index is the reference index of len blocks
* @param e is the pointer to the char array to be saved
* @param len is the length of the block.
*/
void
SBVector::insert (unsigned int index, const char* in, unsigned int len)
{
derefer ();
if (len==0 && buffer->arraySize!=0) return;
ensure (len); /* Allocate at leas len bytes*/
#ifdef NO_MEMMOVE
register char* _array = buffer->array;
for (register unsigned int i=buffer->vectorSize; i>index; i--)
{
_array[i+len-1] = _array[i-1];
}
#else /*NO_MEMMOVE*/
if (index<buffer->vectorSize)
{
memmove (&buffer->array[index+len], &buffer->array[index],
buffer->vectorSize-index);
}
#endif /*NO_MEMMOVE*/
memcpy (&buffer->array[index], in, len);
buffer->vectorSize += len;
}
/**
* Remove char's with len length at index
* @param index is the reference index of len blocks
* @param len is the length of the block.
*/
void
SBVector::remove (unsigned int index, unsigned int len)
{
derefer ();
if (len ==0) return;
// Move the elements down.
#ifdef NO_MEMMOVE
register char* _array = buffer->array;
for (register unsigned int i=index+len; i<buffer->vectorSize; i++)
{
_array[i-len] = _array[i];
}
#else
memmove (&buffer->array[index], &buffer->array[index+len],
buffer->vectorSize-index-len);
#endif
buffer->vectorSize -= len;
}
/**
* Ensure that we have enough capacity.
* Before this, the reference count should be one!
* int more - the elements in bytes that we need.
*/
void
SBVector::ensure(unsigned int more)
{
buffer->ensure (more);
}
bool
SBVector::equals (const SBVector& e) const
{
//if (e.array() == array()) return true;
unsigned int cmplen = e.size();
if (size() != cmplen) return false;
return (memcmp (array(), e.array(), cmplen) == 0);
}
#endif /* SBVector_h */
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